Question

(2x-y+z)^2 ????????????¿????????????????????¿???????
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Answer 1

Answer:

$2x^{2} -y^{2} + z^{2}$

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Answer 2

Step-by-step explanation:

(2x - y + z )^2.

=(2x + (-y) + z )^2.

=(2x)^2 + (-y)^2 + (z)^2 + 2×2x×(-y)+ 2×(-y)×z + 2 × z × 2x

[using ( a+b+c )^2 = a^2 +b^2 +c^2 +2ab+2bc+2ca]

= 4x^2 + y^2 + z^2 -4xy -2yz + 4xz.